package com.atguigu.gmallpublisher1.service;

import java.math.BigDecimal;
import java.util.Map;

public interface ProductStatsService {

    //查询总的交易额
    BigDecimal getGmv(int date);

    //根据品牌分组,查询GMV
    Map getGmvByTrademark(int date, int limit);

}
